Bestimmungsfragen (Determination) > Knifflige Determination (Difficult determination)

Tegenaria sp. ♂ from Georgia

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Armen Seropian:
Greetings to all.
Haven't been for a while here, but the Tegenaria sp. male that a friend of mine has found in Gori on October 1 at the river bank, became a true headache for me. I couldn't find any similar drawings of a male pedipalp of known species. Maybe I've overlooked it? Will be thankful for any suggestions.

Best regards,

Martin Lemke:
May be this Tegenaria abchasica  Charitonov, 1941

You may check, which Tegenaria is known for Georgia; consult the list in our wiki: on each article is included a link to the relevant page of with the taxonomic details.


Simeon Indzhov:
Nice to see you here again!
Interesting find and I am also failing to find it; Martin' s suggestion fits the best but the straight median apophysis (unless that's explainable from perspective?) and the lack of the long process on the dorsal tibial apophysis (broken off?) don't match. It may easily be an undescribed species species or the undescribed male of one of the species described only from females from the Caucasus?

Armen Seropian:
Hi Martin,

Yes, the only species that fits best is T. abchasica indeed, but there are some differences in my opinion (see Simeon's comment).
Actually, I've a poor quality picture of the epigyne as well (both as T. abchasica, so cf. abchasica) and the proportions do not fit T. abchasica, nor does the sternum...

Hi Simeon, nice to see you too! No, that's not a perspective thing, yesterday I've caught a male from other place and in the microscope tibial apophysis clearly is not that curved as it is in T. abchasica.

Anyway I'm attaching epigyne photos of female epigynes and sternum.

T. cf. abchasica ♀ sternum

T. cf. abchasica epigyne (unfortunately I don't have lateral view, but the epigyne is not flat and somewhat convex.

T. abchasica epigyne

Simeon Indzhov:
Interesting. Were you able to unambiguously match the first female to the male or at this point you're treating it as a separate species? Anyway, it bears some resemblance to the epigynal shape of two species with undescribed males - chumachenkoi and ismaillensis, both with T- or anvil-shaped middle part. It would definitely be worth to see the vulva of this female type.


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